MESON Chess Problem Database

Problem Display
PID: 245696 (5b2/2Br1pp1/N2R4/2PP1R2/4k1nN/2K1p1P1/4P2n/8 w - - 0 1)

Wirtanen, Erkki Aukusti

Norsk Sjakkblad, 1952

5b2/2Br1pp1/N2R4/2PP1R2/4k1nN/2K1p1P1/4P2n/8

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.exf3#
    • 1...Se5
      • 2.Rf4#
  • Tries
    • 1.Re6+?
      • 1...Se5
        • 2.Rfxe5#
        • 2.Rexe5#
      • 1...fxe6!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rb4#
      • 1...Rxd5
        • 2.Rf4#
      • 1...Bxc5
        • 2.Sxc5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sf3
        • 2.exf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::P(A),XS(a)
    • S(d);SBLOCK::R1(G)
  • Tries
    • Try
      • R(I);CHECK
      • Refutation
        • P(f);XR(I)
  • Actual
    • R(I);
    • Threat
      • R(I)
    • Vars
      • R(e);SBLOCK,XP(F)::R1(G)
      • B(h);XP(E)::S(H),XB(h)
      • S(d);N_GUARD::R1(G),XS(d)
      • S(a);OGATE::P(A),XS(a)
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